[lkml]   [2001]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: SMP/cc Cluster description
On Thu, 6 Dec 2001, Rik van Riel wrote:

> On Thu, 6 Dec 2001, Davide Libenzi wrote:
> > > Machines get dragged down by _uncontended_ locks, simply
> > > due to cache line ping-pong effects.
> >
> > Rik, i think you're confused about lockless algos.
> > It's not an rwlock where the reader has to dirty a cacheline in any case,
> > the reader simply does _not_ write any cache line accessing the
> > list/hash/tree or whatever you use.
> Hmmm indeed, so the cache lines can be shared as long
> as the data is mostly read-only. I think I see it now.
> However, this would only work for data which is mostly
> read-only, not for anything else...

yes of course, but in such case these methods could help solving cache
issues over traditional rwlocks.

- Davide

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:18    [W:0.292 / U:1.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site